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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	// your code goes here
  6. 	int n;
  7.     cin >> n;
  8.  
  9.     for (int i = 1; i <= n; i++) {
  10.         int sum = 0;
  11.  
  12.         for (int j = 1; j <= i; j++) {
  13.             cout << j;
  14.             sum += j;
  15.  
  16.             if (j != i) {
  17.                 cout << "+";
  18.             }
  19.         }
  20.  
  21.         cout << "=" << sum << endl;
  22.     }
  23.  
  24. 	return 0;
  25. }
Success #stdin #stdout 0s 5316KB
comments (?)
stdin
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3
stdout
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1=1
1+2=3
1+2+3=6
https://ideone.com/D5CEHR
language:
C++14 (gcc 8.3)
created:
4 hours ago
visibility:
public

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